1/11

August 2001

s

HIGH SPEED:

s

LOW POWER DISSIPATION:

s

HIGH NOISE IMMUNITY:

s

SYMMETRICAL OUTPUT IMPEDANCE:

s

BALANCED PROPAGATION DELAYS:

s

WIDE OPERATING VOLTAGE RANGE:

s

PIN AND FUNCTION COMPATIBLE WITH

74 SERIES 564

DESCRIPTION

The M74HC564 is an high speed CMOS OCTAL

D-TYPE FLIP FLOP WITH 3-STATE OUTPUTS

technology.

This 8 bit D-TYPE FLIP FLOP is controlled by a

clock input (CK) and an output enable input (OE).

On the positive transition of the clock, the Q

outputs will be set to the logic state that were

setup at the D inputs.

While the OE input is at low level, the eight outputs

will be in a normal logic state (high or low logic

level) and while high level the outputs will be in a

high impedance state.

The output control does not affect the internal

operation of flip-flops; that is, the old data can be

retained or the new data can be entered even

while the outputs are off.

All inputs are equipped with protection circuits

against static discharge and transient excess

voltage.

M74HC564

OCTAL D-TYPE FLIP FLOP

WITH 3 STATE OUTPUT INVERTING

PIN CONNECTION AND IEC LOGIC SYMBOLS

ORDER CODES

PACKAGE

TUBE

T & R

DIP

M74HC564B1R

SOP

M74HC564M1R

M74HC564RM13TR

TSSOP

M74HC564TTR

TSSOP

DIP

SOP